The Bangalore Development Authority (BDA) commissions a traffic impact study for the proposed Hebbal short tunnel project, but experts question the report’s methodology and data. Multiple outlets report that the study is under scrutiny due to concerns about how current and future traffic impacts are assessed.
Experts associated with the Indian Institute of Science (IISc) raise objections to the approach used in the BDA-backed study. The criticisms include reliance on outdated data and the absence of a comprehensive traffic assessment methodology. Sources also point to issues with congestion estimates, including the use of passenger car unit (PCU) conversion factors that may not reflect real-world conditions. One report also includes the view of a BDA official, who says the study supports the project’s necessity for managing traffic in coming years.
Coverage frames the debate as a dispute between technical institutions: one side defends the study’s conclusions, while the other questions whether the underlying inputs and analysis are sufficient to justify the project. The differing angles focus on either supporting the tunnel’s planning rationale or challenging the credibility of the study used to support it.
